Product Description Goodyear Vigor Fully Synthetic is a very high performance lubricant for diesel engines. It is formulated with the combination of proven high performance additives and highly refined synthetic base stocks which ensure the control and sweeping away the soot and particles found in high performance engines. Download Product 5W40-10W40 Data Sheet Product Code API MEETSExceeds Grade MSDS GYD-4130/CI540 CI-4 5W40 Download GYD-4135/CI1040 CI-4 10W40 Download